Mountain Hydrangea 'Tuff Stuff'

Hydrangea serrata

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: serrata (sair-AY-tuh) (Info)
Cultivar: Tuff Stuff
Additional cultivar information:(PP24820; aka Tuff Stuff, MAK20)
Hybridized by Wood
Registered or introduced: 2012
» View all varieties of Hydrangeas


12-18 in. (30-45 cm)

18-24 in. (45-60 cm)


36-48 in. (90-120 cm)


USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Light Shade


All parts of plant are poisonous if ingested

Bloom Color:


Bloom Time:

Mid Spring



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Mchenry, Illinois

Weymouth, Massachusetts

Gardeners' Notes:


On Feb 1, 2015, noseykate from SOUTH WEYMOUTH, MA wrote:

I have two of these hydrangeas, which overwintered in the bitter 2013-14 cold with no problem. They were covered with blooms, at first a clear sky-blue and then changing to purple and on to deep burgundy which lasted into fall. This hydrangea (and the similar "Tiny Tuff Stuff") has become my favorite of the varieties that I grow. Vigorous and very beautiful.


On Dec 9, 2014, coriaceous from ROSLINDALE, MA wrote:

This is advertised as the first reblooming lacecap hydrangea. Because it blooms on both old and new wood, bud blast or dieback from exceptionally cold winters should not wipe out bloom the following summer. (Bloom time is from early summer till fall.)

Flower color may depend on soil pH, pink on alkaline (high pH) soil to blue-purple or blue on acid (low pH). (The patent application says the color is pink.) The big showy sterile outer florets are semi-double to fully double.

According to the originator, at maturity this shrub is 2-3' tall and wide.

This plant is hardier than indicated above, to Z5a.

The cultivar name is 'MAK20'. "Tuff Stuff" is a proprietary trade name.

US PP # 24,820 (2014)